The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 25, 1985
Filed:
Aug. 24, 1984
Applicant:
Inventors:
Marcel Ropars, Rocquen Court, FR;
Bertrand Bloch, Paris, FR;
Assignees:
Societe Nationale des Poudres et Explosifs, Paris, FR;
Office National d'Etudes et de Recherches Aerospatiales, Bagneux, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G / ;
U.S. Cl.
CPC ...
528232 ; 264137 ; 26433122 ; 427290 ; 528237 ; 528238 ; 528242 ; 528245 ; 528266 ; 528269 ; 528302 ;
Abstract
The object of the invention are new thermoset polymers and prepolymers, a process for their preparation, and their uses. The new thermoset prepolymers consist, at least in part, of the polycondensation products of one or more pyridine derivatives containing at least two activated methyl groups with one or more aromatic monoaldehydes containing at least one hydroxyl group. These prepolymers are used to prepare composite materials, in particular laminates, that can be used at high temperatures.